Since 1922 he is the Habsburg pretender to the Austrian throne.
This allowed Maria Theresa to secure the Austrian throne in defiance of the Salic Law.
He invaded Hungary to dissolve the Hungarian Government, without any order by the Austrian throne.
Occasionally, the Austrian throne would overplay their hand in their tactics of divide and conquer in Hungary - with some quite unintended results.
Valerie's solemn renunciation of her rights to the Austrian throne, which was necessary for the marriage to proceed, took place on 16 July 1890 at the Hermesvilla.
His grandfather Otto von Habsburg renounced all claims to the Austrian throne, as a necessary condition to return to Austria.
Her ambition to place her oldest son on the Austrian throne was a constant theme in Austrian politics.
Jelačić supported independence for Croatia from the Austrian throne.
Then, in a secret agreement with his brother, when Maximilian accepted his Mexican mission he renounced all claims to the Austrian throne.
"Otto" stood for Otto of Hapsburg, the young pretender to the Austrian throne, then living in Belgium.